Counter-skiving machine.



f No. 652,824.

Patented July 3, |900. H. A. WEBSTER. COUNTER SKIVING MACHINE.

(Application filed Feb. 28, 1900.)

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No. 652,824, Patentedfluly 3, |900.

H IA. WEBSTER.

COUNTER SVKIVING MACHINE.

(Application mea Fe'b. 23,1900.)

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/7/ d A 71 e "6 i WITNESSBS: JGMJM'Q No. 652,824. Patented luly 3, l9`00.'

H. A. WEBSTER.

COUNTER SKIVING MACHINE.

(Application med Feb, 2s,` 1900,)

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(No Model.)

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HAROLD A. WEBSTER, 0E HAVERHILL, MASSACHUSETTS, AssIGNoR or ONE-HALE To HERBERT B. NEWTON, on SAME PLACE.

COUN''ER-SKIVING-MACHINE.

SPECIFIGATI'oHf'orming part of Letters Patent No. 652,824, dated ruiy' s, 1900.

Application mea retmry 2s, 1900. serial No. 6,191. (No man.)

To all whom t may concern: Be it known that I, HAROLD A. WEBSTER, of Haverhill, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Counter-Skiving Machines, of which the following is a specification.

This invention has for its object to provide a machine for skiving at one operation both the straight and the curved edges of a heelcounter or counter-blank.' i

The invention also has for its object to prov vide improved means for feeding a blank, such as a heel-counter, to a knife or knives for skiving the same in such manner as to perfectly control the blank and keep it in a flat condition free from waves or wrinkles.

Theinvention consists in the improvements which I will now proceed to describe and claim.

Of the accompanying drawings, forming a part of this specification, Figure l represents a top plan view of a counter-'skiving machine embodying my invention. Fig. 2 represents a side elevation ofthe same. sents a side'view of the tipping skiving-knife, hereinafter'described, and'itssupport. Fig. 4 represents a section on line 4 4 of Fig. l. Fig. 5 represents a section on line 5 5 of Fig. 4. Figs. 6 and 6m represent top views, each showing a portion of the counter-blank during the skiving operation. Fig. 7 represents a section on line 7 7 of Fig. 6. Fig. 8 represents a section on line 8 8 of Fig. 6. Fig. 9 represents a view similar to Fig. 6, showing the counterfat a different stage in the skiv-v ing operation. Fig. l0 represents a section on line l0 10, Fig. 9.

The same reference characters indicate the same parts in'V all the figures.

An essential feature of my machine, so far as the operation of skiving the curved edge of a heel-counter a is concerned, is a tipping knife ZJ, which normally stands in the path in which the counter is fed by the feeding and controlling mechanism,hereinafter described, and means controlled by the curved edge ot of the counter for varying the position of the tipping knife, the cutting edge of the knife being normally approximately or nearly parallel With the plane of the counter, so that in Fig. 3 repremeeting lthe -advancing end of the counter formed by the intersection of the straight and curved edges the knife will stand nearly horizontally while lirst'cutting into the counter, means being provided, which are controlled by the curved edge et of the counter, for gradually increasing the inclination of the knife as the counter advances, so that after the knife has trimmed the end portion of the counter with an approximately-horizontal cut it will gradually assume. a greater inclination 'which is maintained 'until the rear curved portion of the counter approaches the tipping knife, when the latter again gradually assumes its normal position and gives the rear end of the counter the same shape as the forward end. The tipping knife Z9 is thus caused to skive the curved edge of the counter from end to end, so that the entire counter is skived at one operation, the machine being provided with a fixed skiving-knife c, adapted to skive the straight edge of the counter, as hereinafter described.

The tipping knife Z9 is here shown as provided With an upwardly-projecting shank Z92O at one end, which shank is attached to the swinging end of a secondary arm Z922, said arm being connected by a pivot-pin Z923 with a swinging primary arm Z9', which is mounted to oscillate on a stud Z92, supported by a fixed ear Z930 on the frame of the machine. The Secondary arm Z922 projects over a progressivelymoving flat bed, hereinafter described, said bed being composed of a series of sections d and adapted to support the counter and move it endwise against the tipping knife. The secondary arm is pressed downwardly by a spring Z924 toward the bed, and the primary arm is adapted to swing towardand fromthexbed to permit the knife to move endwise and follow the curvature of the portion o. of the blank on the bed. The spring Z924 isattached at one end to the primary arm Z9' and atthe other end to the pivot-pin Z922. The secondary arm is attached by a set-screw Z925 to the pivot-pin. When said set-screw is loosened, the pin Z922 may be turned to vary the tension of the'spring Z922 by a wrench applied to the squared end of the pivot-pin. The shank Z92U of the tipping knife is vertically adjustable on the end `of IOO in the shank and a screw Z127 passing through said slot and entering the secondary arm, the tipping knife being therefore vertically adjustable, so that the thickness of the skived edge formed by it on the counter can be varied. The primary arm b' is normally held with the cutting edge of the knife Z) projecting over the straight edge of the blank by means of a spring b3, one end of which is connected to an adjustable drum b4, held at any desired adjustment of tension of the spring bya ratchet b5 and a pawl lf, the other end of the spring being connected to a stud 117 on the arm b bs represents a gage-roll pivoted to an ear f on the secondary arm and projecting forward from the cutting edge of the knife b. The under side of the gage-roll bears on the blank supportingand feeding bed, as shown in Figs. 8 and l0, and its periphery bears against the edge of the blank just ahead of the knife h, as shown in Figs. 6, 6, and 9. Before the blank reaches the gage-roll the knife stands in the position shown in Fig. G, its cutting edge being approximately parallel with the bed, although slightly inclined, and in position to skive the advancing end of the blank. As the knifeb commences to make its cut the curved edge of the counter bears against the roll and exerts pressure thereon ,displacing it,together with the knife l), from the normal position of the knife, as indicated in Figs. 6 and 9, the knifebein g at the same time tipped and caused to form an inclined skived surface on the curved edge of the blank, as indicated in Figs. 8 and l0, said surface being continued along the straight portion of the edge between the c urved portions. As the blank passes along the roll bs and the curved edge begins to recede the roll and knife are forced inwardly and follow the curvature of the blank, so that by the time the rear end of the counter reaches the knife the latter is once more in its normal position.

The fixed skiving-knife c,which is arranged to act on the straight edge of the counter, is suitably inclined to cut a uniform bevel along said straight edge and is preferably located in advance of the tipping knife b, as indicated in Figs. l and 6.

For feeding the counter against the knives b and c and at the same time holding it in a flat condition free from waves or wrinkles I employ a feeding mechanism comprising a progressively-moving bed, which is preferably composed of a series of sections (Z (l, connected to form an endless chain, as shown in Figs. 2 and 1, said chain being supported by wheels e e, one of which is rotated by suitable lneans, such as a belt running from a pulley c', attached to the shaft of the driven gaged with sprocket-teeth formed on thel wheels e e.

7L represents a fixed table forming a part of the supporting-frame and arranged to support in a horizontal position the sections d d forming the upper stretch of the chain, so that the said sections collectively form a continuous horizontal unyielding bed, as shown in Fig. 4. Above this rigidiy-supportcd or acting portion of the bed are arranged a series of pressure-rolls i, which are preferably rolls of rigid material having trunnions which are journaled in vertically-movable bearings i', fitted to slide in guides in a fixed frame j, said bearings being pressed yieldingly downward by means of springs Z, supported by said frame.

It will be seen that the pressure-rolls z' cooperate withthe moving bed in supporting the counter a in a flat condition and controlling it while it is being skived, said bed and pressure-rolls being arranged to coperatc with the skiviug-knives b and c. As here shown, the fixed knife c is arranged to project between two of the pressure-rolls, the tipping knife l) being at the rear end of the series of rolls and projecting over the upper surface of the acting portion of the bed.

I do not limit myself to the conjoint use of the described feeding mechanism, the fixed skiving-knife, and the tipping skiVing-knife, as it is obvious that the tipping knife may be used in connection with any other suitable feeding mechanism and with or without the fixed knife. It is further obvious that the described feeding mechanism may be used with one or more skiving-knives and that When used with one skiving-knife the same maybe either the fixed knife c or the tipping knife b.

In Fig. 4 I show means for adjusting the chain of links or sections (Z, said means comprising an adjustable bearing 7c for the shaft of one of the wheels c, said bearing beingattached by a bolt 7c to a fixed bracket 7a2, which has a slot k3, through which the bolt 7o passes, said slot permitting the adjustment of the bearing 7c.

I claim-- l. A counterskiving machine comprising a tipping skiVing-knife, means for feeding a counter against said knife, and means controlled by the curved edge of the counter, for varying the position of the knife.

2. A counter-skiving machine comprising means for feeding a counter lengthwise, a tipping skiving-knife yieldingly held with its cutting edge approximately parallel with the plane of the counter, and means controlled by the curved edge portions of the counter, for tipping or inclining the knife and varying its inclination.

3. A counter-skiving machine comprising means for feeding a counter, a skiving-knife, an oscillatory yielding arm which normally holds the knife in the path of the counter, with its cutting edge approximately parallel with the plane of the counter, and a gage on IOO IIO

said arm arranged to cooperate with the curved edge of the counter in tipping or inclining the knife.

4. A counter-skiving machine comprising means for feeding a counter, a skiving-knife, an oscillatory arm for supporting the knife and pivoted to an oscillatory support, springs acting on Athe arm and support to normally hold the knife with its cutting edge approximately parallel with the plane of the counter, and a gage on said arm adapted to coperate with the curved edge of the counter in alternately displacing the knife from its .normal position and permitting it to return thereto.

5. A counter-skiving machine comprising a IiXed knife arranged to skive the straight edge of a counter, a tipping knife arranged to skive the curved edge of the counter, means for feeding a counter against said knives, and means controlled by the curved edge of the counter for varying the position of the tipping knife.

6. A counter-skiving machine comprising counter holding and feeding mechanism, including a progressively-moving rigid or unyielding counter-supporting bed and a series of holding-down rolls coperating with the bed, and a skiving-knife inclined relatively to the bed and arranged to skive one edge of the blank.

7. A counter-skiving machine comprising counter holding and feeding mechanism, including a progressively-moving counter-supporting bed and a series of holdin g-doWn rolls cooperating with the bed, a skiving-knife located in the path in which the counter is moved by said bed and rolls, said knife having a tipping movement, and means controlled by the curved edge of the counter for varying the position of the tipping knife.

8. A counter-skiving machine comprising counterholding and feeding mechanism including a progressively-moving counter-supporting bed and a seriesfof holding-down rolls cooperating With the bed, skiving-knives located in the path of the counter, one of said knives being fixed and arranged to act on the straight edge of the counter, While the other is adapted to tip and is arranged to act on the curved edge of the counter, and means controlled by the said curved edge for varying the position of the tipping knife.

9. A counter-skiving machine comprising an endless counter-supporting bed composed of sections connected to form an endless chain, Wheels for supporting and propelling said bed, a fixed support for one of the stretchers of the bed, a series of pressure-rolls 1ocated over the supported portion or stretch of the bed and arranged to coperate with the bed, and inclined skiving-knives arranged to skive the edges of the counter While it is being fed by the bed and rolls.

In testimony whereof I have affixed my signature in presence of two Witnesses.

HAR-OLD A. WEBSTER.

Witnesses:

C. F. BROWN, E. BATGHELDER. 

